The main objective of this study is to update the flow field of the Scheldt, which can be used as an input for the shipping simulator. For this modelling exercise, 8 numerical models in 3 different modelling suites (Simona, Delft3D, TELEMAC) are updated to the year 2015 with the necessary inputs (bathymetry, salinity, boundary conditions, river discharge and wind). Two modelling approaches are compared.